Radiator



A. V. KNOLL.

RADIATOR.

APPLlcATloN FILED APR. 26, 1920.

1,407,428,V Patented Feb. 21, 1922.

4 RADIATOR.

i ,ternes Specification of Letters Eatent.

rat-cama sensi, ieee.

Application filed April 26, 1920. Serial No. 376,702.

To al@ whom it may conce/ra:

Be it knownthat I, ANTHONY V. KnoLL, a. citizen of the United States, and a resident 'of Davenport, in the county oi' Scott and Stateof Iowa, have invented a new and useful lmprovementin Radiators', of which the following is a full, clear, and exact description.

Biy invention relates to improvements in radiators, and it consists in the combinations, constructions, and arrangements herein described and claimed.

An object oi .my invention is to-provide a radiator having tubes in curved torni where by there isV no danger of stopping oil the circulation.

` A further object of myinvention is to'provide a'radiator having tubes of the form described which is braced between adjacent tubes so as to render the device strong and durable.

A further object of my invention is to provide a radiator having tubes which are of varying thicknesses along the width oi the tube, the cross section of the tube presenting a iluted or corrugated contour, whereby the expansion of the tube can occur, as when the water freezes in the tubes, without injuring the latter.

A further object of my invention is toprovide a noveliform of water tube having lock seam joints, thereby preventing leaking.

A further object of my invention is to provide a tube in which the water is caused to travel a greater distance than in the ordinary straight tube, thereby insuring positive radiation.

A further object of 'my invention is to provide a radiator in which a relatively large amount of air maybe admitted, thereby insuring the cooling of the water in the tube.

Other objects and advantages will appear in the following specification, and the novel features ofV the invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawings, forming part of this ap plicatiom in which Y Fig. l is a front view of the device,

Fig. 2 is a side view of one of the braces,

Fig. 3 is an edge view of one of the braces,

Fig. 4 is a section along the line 4 4 of Figure l.

Fig. 5 is a perspective view of a portion of the device.

ln carrying out my invention, I provide a plurality of water tubes ot the shape shown in the drawings. These tubes are of varying thicknesses at diiierent portions, bent back and forth to iorm loops, as clearly shown in the drawings. l have shown these tubes at A, B, and C respectively, it being understood that as many tubes as desired may be used, depending upon the size of the radiators. Each of the tubes is joined at the top to a header lll and also at the bottom to a header F. To this end each tube is provided with a'i'lange G abutting the header, the body portion of the tube entering the header. as

shown in the drawings.

Consider' Fig. 4. In this figure, it will be seen that the thickness of each tube varies at different points. The largest thickness is shown-at H and the smallest at K, the thickness H being twice that of K. The opposed sections of the tube are joined'together by lock seam oints M, thus insuring against leaking. These joints are designed to be soldered.

Cooperating with the tubes are braces, such as that shown at P. These braces have openings Q arranged to admit the curved portions oi the loops or convolutions of the tubes. rlhe braces are curved or corrugated in the inanner shown and are soldered, or otherwise secured to the adjacent portions of the tubes. This renders the construction exceedingly strong and one which is not liable to be easily broken. The braces are also curved or fluted in a transverse direction, as will be seen from Figure 4, to conform to the varying diameter of the water tubes. The braces, however, terminate short the ends of the tubes. The distance between adjacent tubes,

i. e., the distancerat R, is preferably onehalf of the largest diameter of the tube. The distance between the convolutions or bends of the tube, i.e., from center to center, as shown at S, is twice the largest thickness of the tube, while the distance from the center of one bend to the center of the. adjacent one, i. e., the distance T, is four times the largest thickness of the tube. These dimensions are the preferable ones, but may vary without departing from the spirit of the invention.

The radiator constructed as described has a large radiating capacity compared with its dimensions. It is not liable .to clog up, owing to the increased thickness of the tubes at various points, The braces and tubes stand shocks and jars, which 'would tend to break or dismantle the ordinaryradiator.

Y I claim: A

1. An automobile radiator construction comprising an upper and a lower header, a. plurality ot water pipes extending from. said upper to said lower header, said pipes being bent back and forth to forni U-shaped loops, adjacent pipes having loops oppositely disposed, a brace disposed between the adjacent pipes, each ol' said braces having an opening t0 receive the bent portionof the contiguous loops and being secured to said bent portions.

2. An autoinobile radiator construction eoniprisingjan upper and a lower header,

a plurality o'l" water pipes Vextending from said upper to said lower header, each ot saidpipes being bent Vback upon itself toV forni a series of U-shaped pipes, each ot said pipes having its sides bowed inwardly at a plurality of points from front to rear of thepipe Ato provide varying diameters, and bracing devices extending `itroni the upper Y to the lower header and having openings ar-Y ranged to receive the bent portionsot' ad- ]acent pipes, said bracing devices being curved to conform with the varying diamthey are secured.

eter of the pipes aiidbeing secured to the plurality of water pipes extending frein said upper to said lower header, each oi'saidv pipes being bent back upon itseli1 to forni a -series oi'rUshaped pipes, each of said Vpipes having its sides bowed inwardly at a plurality of points from kfront toy rear of the pipe to provide varying diameters, bracing devices extending from 'the upper to the lowerheader and having openings arranged to receive the bent portions of ,adjacent pipes, said bracing devices being curved to conforinwith the Vvarying diaineter of the pipes and beingsecured to theV pipes at the U-sliaped bends, and a pair of bracing devices between the adjacent pipes, each ot aid bracing devices having openings arf ranged to receive the 'bent ends of the loops of adjacent pipes, said bracing devices being curved to contact'withthe adjacent bracing devices and being secured to the pipes at the bends in the latter, each oi' said bracing devices being 'curved to contorni with the varying diameter of the device towhioh ANTHONY v. Krenn 

